Oil-treating apparatus



Jan. 28, 1930. I E...J. DE GUENTHER OIL TREATING APPARATUS Filed April 30, 1928 Patented Jan. 28, i930 UNITED STATES PATENT OFFICE Application filed April 30, 1928 Serial Io. 278,877.

This invention relates to oil treating apparatus.

, Objects of this invention are to provide a novel form of oil treating apparatus which is adapted to separate from the oil any particles carried thereby and which is adapted to catch all magnetic particles, such for instance, as the worn portions oi the engine and associated parts, and which is provided with a collection chamber for the removed particles, such collection chamber being out of the path of travel of the oil through the device.

Further objects of this invention are to provide a magnetic separator which employs a permanent magnet, which is extremely simple and easily constructed, and which is formed of two parts removably held together by a single bolt.

Further objects are to provide a separator having a magnetic member carried thereby and provided with a disc at one end of the magnetic member. across the edges of which the oil is caused to pass, and to provide a screen through which the oil must pass, said device being also equipped with a by-pass valve controlling an openin through the screen so that in the event t at the device becomes clogged, the auxiliary valve will 39 open and allow the free passage of oil, thus avoiding any chance of burning the bearings or slidin portions'of the engine.

More specifically, objects of this invention are to provide an Oil treating apparatus which may be readily formed from simple types of castings and standard stock, which is provided with a cylindrical screen held in place and centered with reference to a central mag netic rod, such screen being held in place by means of a spring and a portion of the body of the device. a

Further objects are to provide an oil treating apparatus whose parts may be most readily separated to permit thorough cleaning and ins tion of the device. embodiment of the invention is sho in the accompanying drawings in which:

Fi re 1 is a vertical sectional view through the evice, such view corresponding to a section on the line 1-1 of Figure 2;

Figure 2 is a transverse sectional view on the hne 2-2 of Figure 1.

Referring to the drawings, it will be seen that the device consists of an upper casing member 1 of cylindrical contour and a lowereter t members may formed from iron castin and very'little machinin is required. T e lower casing 2 is rovide with an outwardly projecting annu ar flange 3 provided with a shoulder 4 within which the lower end of the upper casing 1 is adapted to seat. Preferably, a gasket 5 is positioned between the lower end of the upper casing and the lower casing, as shown in Fi re 1.

4 Further, this lower casing is provided with the screen '7. The casing is also provided.

with an outlet opening 10 positioned at a point a material distance downwardly from the top of the upper casing.

The lower casin 2 is provided with an apertured threade boss 11 on its inner bottom side which receives the reduced threaded extension 12 of a permanent magnet 13. The upper end of the magnet is provided with a reduced threaded portion 14.- which is received by the apertured threaded lower end of the lockin bolt 15. This locking bolt extends throug a central aperture in the head of the upper casing and its head bears against a sealing gasket 16.

A disc of magnetic material, indicated by the reference character 17, is positioned over the reduced upper end of the permanent magnet 13 and clamped between the shoulder of the magnet and the bottom oi the locking 'casinimember 2, preferably of smaller diaman the upper casing member 1. These bolt 15. This disc 17 is s aced a slight distance from the walls of t e screen 7. Furthen, in order to hold the screen 7 in its corenters within the screen 7 rect position, a helical spring 18 surrounds the magnet 13 and bears against the walls of the screen 7. The pipeger end of the springis turned in and provi with an eyelet fportion 19 which receives the upper end 0 the m et 18.

sp 18' is positioned within the upper rtion o the screen and has an eyelet at its lower end indicated by the reference character 19', similar to the eyelet 19. The disc 17 is thus held securely in place.

The magnet is of course neutral in its center and has its poles at its ends. Conseuently, any material that gasses the disc drops to the lower portion 0 the casin and is held in said lower portion by the ower pole of the magnet. V In the event that the screen 7 should become clo means are provided for the free passage of oil. This means consists of a by-Dass openin or relief opening 20 which is normally c osed by a valve 21. The valve 21 is carried by a spring 22 (see Figure 2) which is a leaf s ring secured to a portion of the screen. This construction permits the valve to open at the desired. ressure, and this pressure-can be regulated y varying the point at which the spring is secured to the screen, thus providing a longer or shorter effective length of the spring.

The up r casing member is provided with a peep bo l: 24 which is closed y means of a glass plate 25 held in lace by a cap 26. By means of this peep ho e, the operator is able to see whether oil is circulating through the device to thus let the o rator know if the oil pump of the automo ile is working. It is preferable to locate this device above the normal oil level so that when it is not in operation the oil will drain from the disc 17.- Immediately upon starting the machine to which the device is attached oil will flow over the disc 17, and this circulating action of the oil can be oherved by the user through the peep hole.

The springs 18 and 18 are preferably made of brass or bronze or other non-magnetic material. They hold the screen 7 properly centered with reference to the centrally located permanent magnet .13.

It is to be noted particularly that the oil and passes over the disc 17 and thus flows down between the edges of the disc and the interior of the well of the screen 7. The disc 17, being of magnetic material, freely conducts the magnetic flux from the magnet 13 and this flux is concentrated at the edge of the disc.

It is preferable to form the locking screw or bolt 15 of brass, bronze, or other nonmagnetic material, so asto prevent conduction of the flux from the magnet 13 to the top or other portions of the casing. This forms in effect a gap which intercepts the magnetic path.

It will be seen further that a settling space or chamber 23 is provided in the base 0 the casin terial that ma be removed from the oil. This settling c amber is readily removable b loosening the bolt 15 and lowering the c amber 2.

Further, any fine magnetic particles which are carried by the oil are retained by the plate 17.

The purpose of providing a non-magnetic locking bolt 15 is to avoid any loss of available magnetic flux which would otherwise occur. Instead, practically all of the flux of the magnet is concentrated at the mar: ginal edge of the disc 17.

It will be seen that this device is extremely simple and is easy to construct.-

It is, of course, to be understood that suitable brackets may be carried byeither one or theother of the casin s, so that it may be readily attached in p ace.

The casing is preferably of cast iron but it may be made of non-magnetic material if desired.

Although the invention has been described in considerable detail, such description is intended as illustrative rather than limiting as the invention may be variously embodied and as the scope of such invention is to be determined as claimed.

I claim:

- 1. An oil treating device comprising a casing, a magnet mounted within said casing and having a disc-like end member, a screen surrounding said member and spaced therefrom and carried within said casing, said casing having an oil inlet above said member and located within the outline of said screen and having an'oil outlet located outside of said screen, said screen bein of cylindrical contour and supported at 1ts upper and lower ends by said casing, and a coiled spring positioned within said screen and engaging said magnet for holding the intermediate portions of said screen in place.

2. An oil treating device comprising a casing formed of magnetic material and having an upper section and a lower section, the lowersection having an outwardly projecting flange for supporting said upper section and having an upwardly extending flange and having a settling chamber located below said flanges, said upper section having a shouldered portion, a cylindrical screen fittin over said upwardly extending flange at 1ts lower end and at its upper end engaging said shouldered' portion, a bar magnet having its lower end secured to the lower section and projecting upwardly into the upper section, a non-magnetic bolt passing throu h the to of the upper section and threa ed upon t e upper end of the bar magnet, a magnetic disc located within said screen and clamped between the upper end 2 and is adapted to receive any .ma-

of said magnet and the lower end of said bolt and having its peripheral edge spaced from said screen, said upper section having an oil inlet opening within the outline of said screen and having an oil outlet opening outside said screen.

3. An oil treating device comprising a casing, a magnet mounted within said casing and having a disc-like end member, a screen surrounding said member and spaced there-' from and carried within said casing, said casing having an oil inlet opening and an oil outlet opening, one of said openings being located Within said screen and the other of said openings beingb located outside of said screen, said screen eing supported by said casing, and a coil spring positioned within said screen and engaging said magnet for holding the intermediate portion of said screen in place.

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee, in the county of Milwaukee and State of Wisconsm.

EDWARD J. DE GUENTHER. 

